光电设备数字标校中的空间姿态耦合分析

Analysis of Space Attitude Coupling in Electro-Optical Device Digital Calibration

针对光电设备传统安装标校方法操作复杂、工作难度大的缺点,提出了一种光电设备数字标校方法,并结合平台稳定型光电设备开展了数字标校过程的姿态耦合分析,重点分析了设备安装水平倾角耦合关系、空间稳定姿态解算和设备方位零位解算过程,并通过仿真计算和试验验证了该方法的可行性。试验验证结果表明:具有稳定平台的光电设备采用该数字标校方法进行安装标校和稳定控制时,在动态条件下其目标数据精度可满足2 mrad的技术指标要求。该研究对光电设备标校及误差源分析具有工程指导意义。

In view of the shortcomings of the traditional installation calibration method of electro-optical devices,which is complex in operation and difficult to work,a digital calibration method for electro-optical devices is proposed.The attitude coupling analysis of the digital calibration process,based on the electro-optical device,is carried out.The coupling relationship of installation inclination angle,the calculation of spatial attitude and the calculation process of azimuth zero position of the electro-optical device are analyzed in detail.The feasibility of the method is verified by simulation calculation and experiment.The experimental results show that by using the digital calibration method,the target data accuracy of the electro-optical device can meet the technical requirements of 2 mrad under dynamic conditions.This study is of guiding significance for the calibration of electro-optical devices and the analysis of error sources.